Pre-Grant Publication Number: 20070160202
Filing Date: January 11, 2020
Inventors: Andrew Wilt, Michael Kelly
Assignee: International Business Machines Corporation
Current U.S. Classification: 380, 380/030000
View Prior Art for Claim 00011
The cipher system of Claim 8,
wherein the verification text includes a first verification segment, a second verification segment, a third verification segment and a fourth verification segment in sequential order;
wherein the first verification segment includes an encryption of a first random text segment with the user data key prior to the encryption of the user data key with the encryption key;
wherein the second verification segment includes an encryption of a first known text segment with the user data key prior to the encryption of the user data key with the encryption key;
wherein the third verification segment includes an encryption of a second known text segment with the user data key prior to the encryption of the user data key with the encryption key; and
wherein the fourth verification segment includes an encryption of a second random text segment with the user data key prior to the encryption of the user data key with the encryption key.
Submitted by: G. R. Konrad RoederLast updated: 10 months ago
Subject/Title RE: A New Triple-DES Key Wrap Algorithm
Type Email
Description
A discussion of S/MIME's key integrity check security risk due to partially known plaintext from the salt
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